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Manufacturing and characterization of blended PVDF/PVDF-TrFE polymers: a study towards future sensor applications
DownloadSpring 2022
Poly (vinylidene fluoride) (PVDF) and its copolymers received increasing attention due to their electroactive properties and lower processing cost in comparison to the conventional piezoelectric ceramic materials, which are widely used in electronics, energy harvesting, biochemistry, and sensor...
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Fall 2015
Drop transfer from one solid surface to another through stretching liquid bridges between them is important for many industrial applications. Due to the different dominate forces, three possible regimes exist: Quasi-static Regime, where the transfer process is only dominated by surface forces;...
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Spring 2019
A bacterial colony constitutes a complex microcosm which is equipped with a wide range of defensive adaptations that allow the colony to survive adverse environmental conditions and predation. The extreme resilience of bacteria in colonies has been a subject of continued research for nearly two...
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Spring 2024
Nanotechnology has advanced in recent years to the extent that custom-tailored structures of high regularity can now be synthesized with high precision. Single-digit nanochannels (SDNs), referring to nanochannels with a diameter or conduit width of less than 10 nanometers, present unique...
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Molecular Dynamics Study of Clay-Polymer Interactions in the Treatment of Mature Fine Tailings
DownloadFall 2021
In this dissertation, all-atom molecular dynamics (MD) simulations were performed to study the mechanisms of clay-polymer interactions and the effects of solution chemistry in the treatment of mature fine tailings (MFT). The fine solids in MFT were mainly clay particles such as montmorillonite...
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Constructing Continuous Strain and Stress Fields from Spatially Discrete Displacement Measurements in Soft Materials
DownloadFall 2015
Recent studies show that particle tracking together with moving least-square (MLS) method is capable to interpolate displacement field and to determine strain and stress fields from discrete displacement measurements in soft materials. The goal of this study is to evaluate of the numerical...
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Fracture Modeling in Elastomeric Materials: Relating the Macroscopic Response to Microscopic Processes
DownloadFall 2018
Inelastic material behavior is known to be able to enhance the fracture toughness of elastomers. However, how to optimally exploit this toughening mechanism is still being investigated. In this thesis a series of continuum models are developed to describe such inelastic behaviors, with the goal...
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Fall 2013
Recently there has been great research interest in small soft particles because of their significance in both biology and industry. The term ‘particle’ here is defined as a deformable object with size in the range of nano- to micrometers. Many experimental efforts have been spent on investigating...